Verbatim text: Johnson, D. M. 1985. New records for longevity of Marsilea sporocarps. Amer. Fern J. 75: 30--31.
Author: Johnson, D.M.
Year: 1985
Title: New records for longevity of Marsilea sporocarps
Journal: Amer. Fern J
Volume: 75
Pages: 30–31